A case can be made for diagnosing the Russian heat as resulting from climate change.
If one examines e.g. monthly average temperatures for a hundred years, one arrives at a distribution. Based on this, one can employ some statistic calculation as to the chance of any monthly anomaly exceeding one, two, three, ... standard deviations from the mean. If one encounters a month that would be virtually 'impossible' according to this calculation - e.g. a come back time of say 50.000 years, then climate change must be the factor. One only has to check for somewhat comparable air pressure distributions in previous months te rule out the possibility that that was the only factor.
RR Kampen, NL.
10/8/10 4:25 AM
Rabett
RR
